Double knitting Cowl pattern "Aix"

An op art inspired cowl knitting pattern using sock yarn in two colors. This is not a beginner pattern, knowledge of double knitting is highly recommended. There is a short introduction to double knitting in the pattern, but it is not a tutorial that will teach you the technique. The colorwork motifs are charted only.
The sample shown in the picture was made out of quite an ordinary fingering weight sock yarn, nothing fancy. Any two contrasting colors will work. The result will be an unusual and spectacular inifinity scarf which is completely reversible. I called the pattern "Aix".

If you purchase the pattern, start knitting and (which I don't hope) get to a point where you don't know how to go on, my contact info is in the pattern. I am always happy to help. Please bear in mind that I sometimes need to sleep and don't spend all day on the internet. But I check my mails every day.

Please read below for more pattern details.

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Aix-en-Provence is a city in the south of France. Among many other sights, there is the Vasarely Foundation, established by the Hungarian-French artist and major contributor to the development of Op Art, Victor Vasarely. Many summers ago I was lucky to see his breathtaking work there.
All that said, my name is not Vasarely, but I have kept Aix-en-Provence in good memory.

Aix is a cowl worked in double knitting, using a fingering sock yarn. The pattern is charted. A short introduction into double knitting is included, but if you have never used the technique before, you may find it helpful to watch tutorials.
You can use the pattern to make a scarf as well.

Difficulty level: intermediate (double knitting, working from charts)

Yarn: 2 colors of a fingering sock yarn, 260m (284yds) of each color. Sample was made out of Lana Grossa Meilenweit Special in dark blue and Regia Color 4-ply in light blue, both of them 210m/50g (230yds/1.76oz).
If you want to knit a scarf, you will need at least 350m (382yds) of each color.

Needles: 3.5mm (US 4)

Notions: Yarn needle

Gauge: 24 stitches/28 rows = 10cm/4in in doubleknit stockinette

Size: 115cm (46in) circumference, 18cm (7 1/4in) in width